diff --git a/fastdeploy/runtime.cc b/fastdeploy/runtime.cc
index 91d376190..0b7fc850a 100644
--- a/fastdeploy/runtime.cc
+++ b/fastdeploy/runtime.cc
@@ -242,7 +242,6 @@ void RuntimeOption::UseTimVX() {
 void RuntimeOption::UseCANN(){
   enable_cann = true;
   device = Device::CANN;
-  UseLiteBackend();
 }
 
 void RuntimeOption::SetExternalStream(void* external_stream) {